Hyper-realistic digital illustration, 26yo adult female fairy with shimmering wings and a sheer, translucent silk skirt hiked up to her shoulder blades. She is in a deep doggy-style pose, back arched sharply, palms pressed into a field of glowing moon-grass. A 32yo primary biological male stands behind her, gripping her hips with large hands and plunging a thick shaft into her tight rear. The anal sphincter is explicitly stretched and gaping at the rim, with glistening lubrication reflecting the light. Her face is turned over her shoulder with a look of stunned pleasure. Soft, cool moonlight with a deep indigo and silver color palette.